<!DOCTYPE html><html class="reftest-wait"><head><script type="text/javascript">

function boom()
{
  var area = document.getElementById("area");
  var main = document.getElementById("main");

  area.nextSibling.data += " a ";
  document.documentElement.offsetHeight;
  area.nextSibling.data = " b ";
  main.previousSibling.data += " \u042A ";
  
  document.documentElement.removeAttribute("class");
}

function boom0(ev)
{
  setTimeout(boom, 0);
}

</script></head><body onload="boom0();"> <div id="main" style="width: 1px;"><img src="" usemap="#Map"><map name="Map"><area id="area">        </map></div></body></html>